Amr Mustafa Abdelrahman, Seyedreza Tebyani, Farzad Rokhsar Talabazar, Saba Aghdam Tabar, Nastaran Rahimzadeh Berenji, Araz Sheibani Aghdam, Ismail Koyuncu, Ali Kosar, Huseyin Guven, Mustafa Evren Ersahin, Morteza Ghorbani, Hale Ozgun
The disintegration of raw sludge is of importance for enhancing biogas production and facilitates the degradation of substrates for microorganisms so that the efficiency of digestion can be increased. In this study, the effect of hydrodynamic cavitation (HC) as a pretreatment approach for waste activated sludge (WAS) was investigated at two upstream pressures (0.83 and 1.72 MPa) by using a milli-scale apparatus which makes sludge pass through an orifice with a restriction at the cross section of the flow. The HC probe made of polyether ether ketone (PEEK) material was tested using potassium iodide solution and it was made sure that cavitation occurred at the selected pressures...
April 16, 2024: Chemosphere